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Bluesboystig

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  1. Thanks for your comments, as always very helpful! I like you managed to keep the colours! I'll give it another go, I'm sure there's plenty I can do better in processing. Cheers
  2. It worked, all the lights need to be calibrated by night, then put together in one folder, registered together, then stacked. Thanks so much for the help!
  3. So after messing up my first go at this classic, last Friday I managed to get 3.5h of data.Given the brightness of the object I'd have expected to be able to extract a lot of good information from the data keeping noise under control, but either I was (again) mistaken, or I really need to learn to process better. I have the feeling it's going to be both My stars are elongated, especially int he top left corner, not sure why, guiding was really good. I noticed the same issue on other recent projects, but only in that corner, while here it seems more across the entire image. Not sure if it's poor tracking, weight of the camera, or sensor tilt. Acquisition: 70x180s, 10 darks, 20 flats, 20 biases, ISO 800, Bortle 5 Equipment: Star Adventurer GTI, WO z61 with Flat 61, Canon 2000d modded, Optolong L-Pro, AsiAir mini, ZWO mini guidescope and Asi 120mm guide camera. Processing: Siril: stacking, crop, colour calibration, green noise removal (I didn't do any background extraction because despite trying basically everything I kept obtaining funky backgrounds, full of brighter and darker patches), star removal with Starnet ++, Generalised hyperbolic stretch. GIMP: levels, colour selection and stretched only the galaxy. Siril: star recombination. I have tried to run Denoise AI but I didn't like the loss in sharpness so kept the noisier version. I'd really appreciate any comments/suggestions to help me improve. I'll attach the stacking result from Siril in TIF format if anyone want to have a go at the data. Thanks so much! result_12600s.tif
  4. Thanks for that. Basically my only option here is to register and stack s01 and s02 together, then register and stack s03 separately, then crop manually both results to the same size in px (not sure how to do that in Siril), then stack the two?
  5. Hello from a fellow resident in Berkshire. I’m in Bracknell and haven’t found any recent info on the local club. So reaching out individually to people on here.. welcome to SGL and hopefully see you under clear skies!
  6. Hi, I'm trying to stack 3 different sessions on the Soul Nebula using Sirilic on mac. I have successfully done it for two sessions, but with 3 I'm encountering problems. When pre-processing the console returns the following message: log: #TAG#{ [4] Merge ... log: # log: # Group Directory log: Running command: cd 0: running command cdlog: Setting CWD (Current Working Directory) to '/Volumes/T7/External Astrophotography/Siril/Work/IC1848/DSLR/GROUP' log: Running command: merge 0: running command mergelog: Setting CWD (Current Working Directory) to '/Volumes/T7/External Astrophotography/Siril/Work/IC1848/DSLR/S01/IMAGES' log: Checking sequences in the directory: /Volumes/T7/External Astrophotography/Siril/Work/IC1848/DSLR/S01/IMAGES. ~~~ warning:Reading sequence failed, file cannot be opened: pp_images.seq. seqfile 'images_.seq' already exists, not overwriting Writing sequence file pp_images_.seq Sequence found: pp_images_ 1->35 Reading sequence file `pp_images.seq'. Reading sequence file `pp_images_.seq'. bitpix for the sequence is set as 20 log: Setting CWD (Current Working Directory) to '/Volumes/T7/External Astrophotography/Siril/Work/IC1848/DSLR/GROUP' log: Setting CWD (Current Working Directory) to '/Volumes/T7/External Astrophotography/Siril/Work/IC1848/DSLR/S02/IMAGES' log: Checking sequences in the directory: /Volumes/T7/External Astrophotography/Siril/Work/IC1848/DSLR/S02/IMAGES. ~~~ warning:Reading sequence failed, file cannot be opened: pp_images.seq. seqfile 'images_.seq' already exists, not overwriting Writing sequence file pp_images_.seq Sequence found: pp_images_ 1->38 Reading sequence file `pp_images.seq'. Reading sequence file `pp_images_.seq'. bitpix for the sequence is set as 20 log: Setting CWD (Current Working Directory) to '/Volumes/T7/External Astrophotography/Siril/Work/IC1848/DSLR/GROUP' log: Setting CWD (Current Working Directory) to '/Volumes/T7/External Astrophotography/Siril/Work/IC1848/DSLR/S03/IMAGES' log: Checking sequences in the directory: /Volumes/T7/External Astrophotography/Siril/Work/IC1848/DSLR/S03/IMAGES. ~~~ warning:Reading sequence failed, file cannot be opened: pp_images.seq. seqfile 'images_.seq' already exists, not overwriting Writing sequence file pp_images_.seq Sequence found: pp_images_ 1->40 Reading sequence file `pp_images.seq'. Reading sequence file `pp_images_.seq'. bitpix for the sequence is set as 20 log: All sequences must be the same format for merging. Sequence `../S03/IMAGES/pp_images' is different log: Setting CWD (Current Working Directory) to '/Volumes/T7/External Astrophotography/Siril/Work/IC1848/DSLR/GROUP' log: Error in line 82 ('merge'): generic error. log: Exiting batch processing. log: Setting CWD (Current Working Directory) to '/Volumes/T7/External Astrophotography/Siril/Work' log: Script execution failed. I think the issue is with "Log: All sequences must be the same format for merging. Sequence `../S03/IMAGES/pp_images' is different" but I'm not sure how to solve it. The only thing that I see that possibly creates an issue is that for sessions 1 and 2 I used the files saved on the DSLR SD card (6020x4019 px), for session 3, because I forgot to put the SD card back in, I took the files saved on the AsiAir mini (6020x4020 px). Is this the problem? Or is that a different and additional problem? I'm still very much a beginner and looking to understand what this issue is about. I tried to manually register all the sessions in Siril but it returns the same error. Any tips/suggestions? Thanks so much for the help!
  7. So, I would like to process separately the Ha and Oiii by using Siril's script osc extract HaOiii. But I'm collecting data across multiple nights, so I'd have to use Sirilic. Does anyone knows how to do it/successfully did it and can give me a few pointers? I'm very much a beginner so really looking to learn from all the pros here I've done a bit of research and it seems someone tried but unsuccessfully. Nico from Nebula Photos pointed out it should be doable, but nothing more than that. Thanks in advance for the help! Cheers
  8. I don't have the AM5 but I know that the AsiAir can polar align even if you cannot see Polaris (all sky polar alignment I believe it's called). Youtube has a few tutorials on the subject which might come in handy (I'm planning on trying it myself). Re the range question, not sure about 25m, I have only tried 10m with the AsiAir mini and it was all good.
  9. Managed to get 3 more hours of data on the Soul Nebula. The AsiAir mini was so good to reframe exactly on the same patch of sky and helping with rotating the camera for good framing (managed to get it 0.5 degrees off, pretty decent I'd say). In total now I have around 5h40mins of integration time, 68x300" subs, 11 darks, 30 flats, 30 biases. Night 1: Bortle 5/6. No moon. Night 2: Bortle 6, 57% Moon. Equipment: SA GTI, WO z61 with flattener, Canon 2000d modded, Optolong L-Extreme, Asiair Mini, ZWO Mini Finder-Guider & ASI 120MM-Mini guide camera. Processing details: Sirilic: pre-process multiple sessions. Siril: crop, green noise removal. Separated the nebulosity from the stars using Starnet. GIMP: stretched the nebulosity, separated the nebula from the background and applied levels and curves, adjusted brightness and contrast. Siril: Star recomposition. Topaz Denoise AI for noise reduction. There are some elongate stars in the top left corner, not sure why, I have the field flattener, and the stars in the rest of the image look ok. I can also see some sort of circular artifact around some stars, no idea what that is. When I tried to do star resynthesis in Siril it would get much worse, so I opted to leave the stars just a bit less stretched. Quite surprised as well by the difference in colour, the previous image was very much red/pink. Again, any comments/feedback appreciated.
  10. Managed to get 3 more hours of data on the Soul Nebula. The AsiAir mini doing an excellent job at recentering exactly on the same patch of sky and helping with rotating the camera for good framing (managed to get it 0.5 degrees off, pretty decent I'd say). Soul nebula, 68x300" subs, 11 darks, 30 flats, 30 biases. Night 1: Bortle 5/6. No moon. Night 2: Bortle 6, 57% Moon. Equipment: SA GTI, WO z61 with flattener, Canon 2000d modded, Optolong L-Extreme, Asiair Mini, ZWO Mini Finder-Guider & ASI 120MM-Mini guide camera. Processing details: Sirilic: pre-process multiple sessions. Siril: crop, green noise removal. Separated the nebulosity from the stars using Starnet. GIMP: stretched the nebulosity, separated the nebula from the background and applied levels and curves, adjusted brightness and contrast. Siril: Star recomposition. Topaz Denoise AI for noise reduction.
  11. Thanks for the feedback, I was really trying hard not to overdo it, and I'm learning my way through image processing, so definitely there is still a lot to learn and to improve. I'll try play around with the data and try increase contrast Woa, thanks so much! Noise is a nightmare, but I have already accepted the harsh reality that for crisp clear result integration time is king! Planning on adding hours more of data to this project, fingers crossed the weather gods will play ball! Agree, meridian flips are next on the list of things to master. This time I already had a lot of stuff to try out for the first time, I felt like I'd have pushed my luck a little.. plus I was freezing the proverbial.. BTW, thanks for all the info on your website, I'm reading everything on it, and your images are something incredible! Absolutely inspiring stuff!
  12. Thanks so much for the feedback. I think that two things play up in my mind: I'm still scared of meridian flips 😧 and I'm scared that a passing bird will poo on the telescope (this is probably my paranoia hahahah)..
  13. Thanks! Theoretically yes, thanks to the asiair, but I wasn't at home, I went to a darker location just out of town. But to be fair, the L-Extreme should allow me to shoot from the garden (still learning my ways around all this really). My fault for not dressing for success.
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